Last year was a relatively quiet one for Clickfree after it showed its cards at CES 2009, but it's clear the company is looking to start 2010 off with a bang here in the desert. The recently updated C2 backup drive is seeing a significant overhaul at CES, with the C2N acting as a portable backup drive for any computer on your home network. The C2N drive is the company's first to boast its BackupLink technology, which enables all of your networked machines (Macs and PCs) to be backed up automaticall